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AVS2PS(1)		    General Commands Manual		     AVS2PS(1)

NAME
       avs2ps -	convert	AVS image input	on stdin to monochrome PostScript on
       stdout

SYNOPSIS
	  avs2ps [-b] [-dpi xxx] < infile.avs >	outfile.ps

       avs2ps converts a 24-bit	color image file in AVS	format into a dithered
       monochrome PostScript image with	the same number	of pixels as the input
       file.  avs2ps may be used as a filter for the output of the render pro-
       gram to produce a PostScript file directly.

       avs2ps is machine independent, and does not impose restrictions on the
       tile size in the	original image.	 It supersedes the programs molras3d
       and hdither in the viewtools package.

EXAMPLES
       Produce an unbordered black & white image suitable for printing on a
       300 dpi PostScript printer.

	    render < infile.r3d	| avs2ps > image.ps

       Add a border, and prepare image for a 400dpi printer

	    render < infile.r3d	| avs2ps -b -dpi 400 > image.ps

OPTIONS
       -b

       Draw a border around the	figure.	 By default avs2ps will	produce	a bor-
       derless image 0.5 inch in from the bottom left of the page.

       -dpi xxx

       By default avs2ps writes	header records into the	PostScript output file
       which are correct for a 300dpi printer (e.g. an HP IIIsi).  If there is
       a mis-match between the header records and the actual resolution	of the
       printer the image quality is substantially degraded.  This option al-
       lows one	to specify a different printer resolution (e.g.	-dpi 400 for a
       Next printer, or	-dpi 95	for GhostScript	on a 1280x1024 workstation
       screen).

DESCRIPTION
       avs2ps converts the input stream	to a grey scale	image and then applies
       an empirical algorithm for dithering and	error propagation to produce a
       monochrome output image.

SOURCE
       anonymous ftp site:
	    ftp.bmsc.washington.edu

       web URL:
	    http://www.bmsc.washington.edu/raster3d/raster3d.html

       contact:
	    Ethan A Merritt
	    University of Washington, Seattle WA 98195
	    merritt@u.washington.edu

SEE ALSO
       render(l), raster3d(l), avs

AUTHORS
       Ethan A Merritt.
	Dithering algorithm derived from code by Randy Read and	Albert
       Berghuis.

Raster3D			   8 May 1999			     AVS2PS(1)

NAME | SYNOPSIS | EXAMPLES | OPTIONS | DESCRIPTION | SOURCE | SEE ALSO | AUTHORS

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